Please provide values below to convert horsepower [hp] to kilowatt [kW], or vice versa.
Definition: Horsepower is a unit of power, most commonly used to rate the output of engines and motors.
History/origin: The unit was popularized by James Watt in the 18th century to compare the output of his steam engines to the power of a draft horse.
Current use: Horsepower is still widely used to market and compare car and motor power in the United States and informally worldwide, even though kilowatts are the formal SI unit.
Definition: A kilowatt is an SI-derived unit of power, equal to 1000 watts.
History/origin: The watt was named after James Watt and adopted into the SI system; the kilowatt is simply one thousand watts.
Current use: The kilowatt is the standard unit for rating engine, motor, and appliance power almost everywhere outside informal automotive marketing, which still often quotes horsepower.
| Horsepower [hp] | Kilowatt [kW] |
|---|---|
| 50 hp | 37.28495 kW |
| 100 hp | 74.5699 kW |
| 150 hp | 111.85485 kW |
| 200 hp | 149.1398 kW |
| 300 hp | 223.7097 kW |
| 500 hp | 372.8495 kW |